8-Hydroxyquinoline → 5-Chloro-N-((1-(4-(6-oxopyridazin-1(6H)-yl)phenyl)-1H-imidazol-4-yl)methyl)thiophene-2-carboxamide

HRID 499765Notes

Reaction equation

HRID 499765 reaction equation
[Cl:1][C:2]1[S:6][C:5]([C:7]([NH:9][CH2:10][C:11]2[N:12]=[CH:13][N:14]([C:16]3[CH:21]=[CH:20][C:19](I)=[CH:18][CH:17]=3)[CH:15]=2)=[O:8])=[CH:4][CH:3]=1.[OH:23][C:24]1[N:25]=[N:26][CH:27]=[CH:28][CH:29]=1.OC1C=CC=C2C=1N=CC=C2.C([O-])([O-])=O.[K+].[K+]>CS(C)=O.[Cu]I>[Cl:1][C:2]1[S:6][C:5]([C:7]([NH:9][CH2:10][C:11]2[N:12]=[CH:13][N:14]([C:16]3[CH:21]=[CH:20][C:19]([N:25]4[C:24](=[O:23])[CH:29]=[CH:28][CH:27]=[N:26]4)=[CH:18][CH:17]=3)[CH:15]=2)=[O:8])=[CH:4][CH:3]=1

Participants

7

Reactant 4

HCID 19238-HydroxyquinolineHCID 11430Potassium CarbonateHCID 681533(2H)-PyridazinoneHCID 249868975-Chloro-N-((1-(4-iodophenyl)-1H-imidazol-4-yl)methyl)thiophene-2-carboxamide

Product 1

HCID 247600295-Chloro-N-((1-(4-(6-oxopyridazin-1(6H)-yl)phenyl)-1H-imidazol-4-yl)methyl)thiophene-2-carboxamideYield 15.8%

Reagents, catalysts & solvents 2

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)CatalystHCID 679Dimethyl SulfoxideSolvent

Conditions

Temperature
130 °C

Procedure

A mixture of 5-chloro-N-((1-(4-iodophenyl)-1H-imidazol-4-yl)methyl)thiophene-2-carboxamide 1-6 prepared in Example 1 (100 mg, 0.23 mmol), 3-hydroxypyridazine (43 mg, 0.45 mmol), 8-hydroxyquinoline (15 mg, 0.10 mmol) and K2CO3 (123 mg, 0.89 mmol) in DMSO (1 mL) was degassed before being charged with CuI (19 mg, 0.10 mmol). The mixture in a sealed tube was heated at 130° C. overnight. The mixture was then purified by HPLC to give the title compound (15 mg). MS 412.0 and 414.0 (M+H, Cl pattern).

Workup

  1. customwas degassed
  2. customThe mixture was then purified by HPLC

Sources & evidence

ORD record
ord-8624778c40924bc9a68e050b1fcb01aa
Source dataset
uspto-grants-2010_08
Patent number
US07767697B2

Reaction notes

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